Earth wire connector

Abstract

The invention relates to an earth wire connector comprising a clamp body and an earth wire hanging ring, wherein the clamp body is formed by connecting two semicircular clamp plates, and the earth wire hanging ring is connected with the clamp body. The earth wire connector is characterized in that two ends of the inner side walls of the semicircular clamp plates of the clamp body are in step shapes; bore diameter formed in the middle of the clamp body is smaller than that at the two ends; the bore diameter formed in the middle of the clamp body can be in close fit with an exposed wire core of a cable; and the bore diameter at the two ends of the clamp body is matched with an insulation sheath of the cable. The earth wire connector is mounted on a cable of high-voltage power transmission and transformation lines, and is connected with the cable insulation sheath at two ends of the exposed wire core of the cable when being closely connected with an exposed wire core section of the cable simultaneously, so that safety earthing can be guaranteed, stress on the exposed wire core section can be avoided, cable breakage due to poor tensile resistance and wind resistance of the exposed wire core section of the cable after the cable insulation sheath is peeled off is eliminated, and use is safe and reliable.

Description

technical field [0001] The invention relates to a grounding device, in particular to a grounding connection device for cables in high-voltage power transmission and transformation lines. Background technique [0002] Cables in high-voltage power transmission and transformation lines usually need to be equipped with ground wire connection devices at an appropriate distance, so that they can be easily connected to the ground wire during live repair and maintenance operations to ensure the safety of workers. Most of the existing ground wire connection devices are clamp-type structures, and the inner clamping surface of the clamp body is the same arc surface. When installing, it is necessary to peel off the insulating sleeve of the cable according to the width of the clamp, and then remove the ground wire connection device. The clips rest on the exposed wire cores and secure. The disadvantage of this kind of wire connection device is that the clamp body is only connected to the...

AI Technical Summary

Problems solved by technology

The disadvantage of this kind of wire connection device is that the clamp body is only connected to the core of the stripped cable insulation sleeve, and the exposed core of this section has to bear the weight of the cable, because of its low tensile strength, coupled with the wind, the cable is constantly shaking , it is very easy to cause metal fatigue and fracture of the exposed core at the end where the insulation sleeve is stripped

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